derek.holloway
7502bf64a4
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313 lines
10 KiB
LLVM
313 lines
10 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes=instcombine -S | FileCheck %s
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declare void @use.i8(i8)
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declare void @use.i1(i1)
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define i1 @src_tv_eq(i1 %c0, i8 %x, i8 %yy) {
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; CHECK-LABEL: @src_tv_eq(
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; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i8 [[X:%.*]], 0
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; CHECK-NEXT: [[R:%.*]] = and i1 [[TMP1]], [[C0:%.*]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%y = add nuw i8 %yy, 1
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%sel = select i1 %c0, i8 0, i8 %y
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%selx = or i8 %sel, %x
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%r = icmp eq i8 %selx, 0
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ret i1 %r
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}
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define i1 @src_tv_eq_multiuse_or_fail(i1 %c0, i8 %x, i8 %yy) {
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; CHECK-LABEL: @src_tv_eq_multiuse_or_fail(
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; CHECK-NEXT: [[Y:%.*]] = add nuw i8 [[YY:%.*]], 1
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; CHECK-NEXT: [[SEL:%.*]] = select i1 [[C0:%.*]], i8 0, i8 [[Y]]
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; CHECK-NEXT: [[SELX:%.*]] = or i8 [[SEL]], [[X:%.*]]
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; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[SELX]], 0
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; CHECK-NEXT: call void @use.i8(i8 [[SELX]])
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; CHECK-NEXT: ret i1 [[R]]
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;
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%y = add nuw i8 %yy, 1
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%sel = select i1 %c0, i8 0, i8 %y
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%selx = or i8 %sel, %x
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%r = icmp eq i8 %selx, 0
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call void @use.i8(i8 %selx)
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ret i1 %r
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}
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define i1 @src_tv_eq_fail_tv_nonzero(i1 %c0, i8 %x, i8 %yy) {
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; CHECK-LABEL: @src_tv_eq_fail_tv_nonzero(
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; CHECK-NEXT: [[Y:%.*]] = add nsw i8 [[YY:%.*]], 1
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; CHECK-NEXT: [[SEL:%.*]] = select i1 [[C0:%.*]], i8 1, i8 [[Y]]
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; CHECK-NEXT: [[SELX:%.*]] = or i8 [[SEL]], [[X:%.*]]
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; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[SELX]], 0
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; CHECK-NEXT: ret i1 [[R]]
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;
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%y = add nsw i8 %yy, 1
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%sel = select i1 %c0, i8 1, i8 %y
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%selx = or i8 %sel, %x
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%r = icmp eq i8 %selx, 0
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ret i1 %r
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}
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define i1 @src_fv_ne(i1 %c0, i8 %x, i8 %yy) {
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; CHECK-LABEL: @src_fv_ne(
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; CHECK-NEXT: [[TMP1:%.*]] = icmp ne i8 [[X:%.*]], 0
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; CHECK-NEXT: [[R:%.*]] = or i1 [[TMP1]], [[C0:%.*]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%y = add nuw i8 %yy, 1
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%sel = select i1 %c0, i8 %y, i8 0
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%selx = or i8 %sel, %x
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%r = icmp ne i8 %selx, 0
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ret i1 %r
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}
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define i1 @src_fv_ne_fail_maybe_zero(i1 %c0, i8 %x, i8 %yy) {
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; CHECK-LABEL: @src_fv_ne_fail_maybe_zero(
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; CHECK-NEXT: [[Y:%.*]] = add nsw i8 [[YY:%.*]], 1
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; CHECK-NEXT: [[SEL:%.*]] = select i1 [[C0:%.*]], i8 [[Y]], i8 0
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; CHECK-NEXT: [[SELX:%.*]] = or i8 [[SEL]], [[X:%.*]]
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; CHECK-NEXT: [[R:%.*]] = icmp ne i8 [[SELX]], 0
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; CHECK-NEXT: ret i1 [[R]]
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;
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%y = add nsw i8 %yy, 1
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%sel = select i1 %c0, i8 %y, i8 0
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%selx = or i8 %sel, %x
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%r = icmp ne i8 %selx, 0
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ret i1 %r
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}
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define i1 @src_tv_ne(i1 %c0, i8 %x, i8 %yy) {
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; CHECK-LABEL: @src_tv_ne(
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; CHECK-NEXT: [[TMP1:%.*]] = xor i1 [[C0:%.*]], true
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; CHECK-NEXT: [[TMP2:%.*]] = icmp ne i8 [[X:%.*]], 0
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; CHECK-NEXT: [[R:%.*]] = or i1 [[TMP2]], [[TMP1]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%y = add nuw i8 %yy, 1
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%sel = select i1 %c0, i8 0, i8 %y
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%selx = or i8 %sel, %x
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%r = icmp ne i8 %selx, 0
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ret i1 %r
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}
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define i1 @src_tv_ne_fail_cmp_nonzero(i1 %c0, i8 %x, i8 %yy) {
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; CHECK-LABEL: @src_tv_ne_fail_cmp_nonzero(
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; CHECK-NEXT: [[Y:%.*]] = add nuw i8 [[YY:%.*]], 1
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; CHECK-NEXT: [[SEL:%.*]] = select i1 [[C0:%.*]], i8 0, i8 [[Y]]
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; CHECK-NEXT: [[SELX:%.*]] = or i8 [[SEL]], [[X:%.*]]
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; CHECK-NEXT: [[R:%.*]] = icmp ne i8 [[SELX]], 1
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; CHECK-NEXT: ret i1 [[R]]
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;
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%y = add nuw i8 %yy, 1
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%sel = select i1 %c0, i8 0, i8 %y
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%selx = or i8 %sel, %x
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%r = icmp ne i8 %selx, 1
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ret i1 %r
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}
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define i1 @src_fv_eq(i1 %c0, i8 %x, i8 %yy) {
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; CHECK-LABEL: @src_fv_eq(
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; CHECK-NEXT: [[TMP1:%.*]] = xor i1 [[C0:%.*]], true
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; CHECK-NEXT: [[TMP2:%.*]] = icmp eq i8 [[X:%.*]], 0
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; CHECK-NEXT: [[R:%.*]] = and i1 [[TMP2]], [[TMP1]]
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; CHECK-NEXT: ret i1 [[R]]
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;
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%y = add nuw i8 %yy, 1
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%sel = select i1 %c0, i8 %y, i8 0
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%selx = or i8 %sel, %x
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%r = icmp eq i8 %selx, 0
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ret i1 %r
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}
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define i1 @src_fv_eq_fail_cant_invert(i1 %c0, i8 %x, i8 %yy) {
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; CHECK-LABEL: @src_fv_eq_fail_cant_invert(
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; CHECK-NEXT: [[Y:%.*]] = add nuw i8 [[YY:%.*]], 1
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; CHECK-NEXT: [[SEL:%.*]] = select i1 [[C0:%.*]], i8 [[Y]], i8 0
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; CHECK-NEXT: [[SELX:%.*]] = or i8 [[SEL]], [[X:%.*]]
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; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[SELX]], 0
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; CHECK-NEXT: call void @use.i8(i8 [[SEL]])
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; CHECK-NEXT: ret i1 [[R]]
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;
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%y = add nuw i8 %yy, 1
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%sel = select i1 %c0, i8 %y, i8 0
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%selx = or i8 %sel, %x
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%r = icmp eq i8 %selx, 0
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call void @use.i8(i8 %sel)
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ret i1 %r
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}
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define i1 @src_fv_eq_fail_cant_invert2(i1 %c1, i8 %a, i8 %b, i8 %x, i8 %yy) {
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; CHECK-LABEL: @src_fv_eq_fail_cant_invert2(
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; CHECK-NEXT: [[C0:%.*]] = icmp ugt i8 [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: [[Y:%.*]] = add nuw i8 [[YY:%.*]], 1
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; CHECK-NEXT: [[SEL:%.*]] = select i1 [[C0]], i8 [[Y]], i8 0
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; CHECK-NEXT: [[CC:%.*]] = or i1 [[C0]], [[C1:%.*]]
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; CHECK-NEXT: [[SEL_OTHER:%.*]] = select i1 [[CC]], i8 [[Y]], i8 [[B]]
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; CHECK-NEXT: [[SELX:%.*]] = or i8 [[SEL]], [[X:%.*]]
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; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[SELX]], 0
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; CHECK-NEXT: call void @use.i8(i8 [[SEL]])
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; CHECK-NEXT: call void @use.i8(i8 [[SEL_OTHER]])
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; CHECK-NEXT: ret i1 [[R]]
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;
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%c0 = icmp ugt i8 %a, %b
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%y = add nuw i8 %yy, 1
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%sel = select i1 %c0, i8 %y, i8 0
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%cc = or i1 %c0, %c1
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%sel_other = select i1 %cc, i8 %y, i8 %b
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%selx = or i8 %sel, %x
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%r = icmp eq i8 %selx, 0
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call void @use.i8(i8 %sel)
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call void @use.i8(i8 %sel_other)
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ret i1 %r
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}
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define i1 @src_fv_eq_invert2(i1 %c1, i8 %a, i8 %b, i8 %x, i8 %yy) {
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; CHECK-LABEL: @src_fv_eq_invert2(
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; CHECK-NEXT: [[C0:%.*]] = icmp ugt i8 [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: [[Y:%.*]] = add nuw i8 [[YY:%.*]], 1
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; CHECK-NEXT: [[CC:%.*]] = or i1 [[C0]], [[C1:%.*]]
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; CHECK-NEXT: [[SEL_OTHER:%.*]] = select i1 [[CC]], i8 [[Y]], i8 [[B]]
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; CHECK-NEXT: [[TMP1:%.*]] = xor i1 [[C0]], true
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; CHECK-NEXT: [[TMP2:%.*]] = icmp eq i8 [[X:%.*]], 0
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; CHECK-NEXT: [[R:%.*]] = and i1 [[TMP2]], [[TMP1]]
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; CHECK-NEXT: call void @use.i8(i8 [[SEL_OTHER]])
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; CHECK-NEXT: ret i1 [[R]]
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;
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%c0 = icmp ugt i8 %a, %b
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%y = add nuw i8 %yy, 1
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%sel = select i1 %c0, i8 %y, i8 0
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%cc = or i1 %c0, %c1
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%sel_other = select i1 %cc, i8 %y, i8 %b
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%selx = or i8 %sel, %x
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%r = icmp eq i8 %selx, 0
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call void @use.i8(i8 %sel_other)
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ret i1 %r
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}
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define i1 @src_fv_eq_invert2_fail_wrong_binop(i1 %c1, i8 %a, i8 %b, i8 %x, i8 %yy) {
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; CHECK-LABEL: @src_fv_eq_invert2_fail_wrong_binop(
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; CHECK-NEXT: [[C0:%.*]] = icmp ugt i8 [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: [[Y:%.*]] = add nuw i8 [[YY:%.*]], 1
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; CHECK-NEXT: [[SEL:%.*]] = select i1 [[C0]], i8 [[Y]], i8 0
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; CHECK-NEXT: [[CC:%.*]] = or i1 [[C0]], [[C1:%.*]]
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; CHECK-NEXT: [[SEL_OTHER:%.*]] = select i1 [[CC]], i8 [[Y]], i8 [[B]]
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; CHECK-NEXT: [[SELX:%.*]] = sub i8 0, [[X:%.*]]
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; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[SEL]], [[SELX]]
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; CHECK-NEXT: call void @use.i8(i8 [[SEL_OTHER]])
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; CHECK-NEXT: ret i1 [[R]]
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;
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%c0 = icmp ugt i8 %a, %b
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%y = add nuw i8 %yy, 1
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%sel = select i1 %c0, i8 %y, i8 0
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%cc = or i1 %c0, %c1
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%sel_other = select i1 %cc, i8 %y, i8 %b
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%selx = add i8 %sel, %x
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%r = icmp eq i8 %selx, 0
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call void @use.i8(i8 %sel_other)
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ret i1 %r
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}
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define i1 @src_fv_eq_invert2_fail_bad_sel(i1 %c1, i8 %a, i8 %b, i8 %x, i8 %yy) {
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; CHECK-LABEL: @src_fv_eq_invert2_fail_bad_sel(
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; CHECK-NEXT: [[C0:%.*]] = icmp ugt i8 [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: [[Y:%.*]] = add nuw i8 [[YY:%.*]], 1
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; CHECK-NEXT: [[SEL:%.*]] = select i1 [[C0]], i8 [[YY]], i8 0
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; CHECK-NEXT: [[CC:%.*]] = or i1 [[C0]], [[C1:%.*]]
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; CHECK-NEXT: [[SEL_OTHER:%.*]] = select i1 [[CC]], i8 [[Y]], i8 [[B]]
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; CHECK-NEXT: [[SELX:%.*]] = or i8 [[SEL]], [[X:%.*]]
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; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[SELX]], 0
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; CHECK-NEXT: call void @use.i8(i8 [[SEL_OTHER]])
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; CHECK-NEXT: call void @use.i8(i8 [[YY]])
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; CHECK-NEXT: ret i1 [[R]]
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;
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%c0 = icmp ugt i8 %a, %b
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%y = add nuw i8 %yy, 1
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%sel = select i1 %c0, i8 %yy, i8 0
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%cc = or i1 %c0, %c1
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%sel_other = select i1 %cc, i8 %y, i8 %b
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%selx = or i8 %sel, %x
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%r = icmp eq i8 %selx, 0
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call void @use.i8(i8 %sel_other)
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call void @use.i8(i8 %yy)
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ret i1 %r
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}
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define i1 @src_fv_eq_invert3(i8 %a, i8 %b, i8 %x, i8 %yy) {
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; CHECK-LABEL: @src_fv_eq_invert3(
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; CHECK-NEXT: [[C0:%.*]] = icmp ugt i8 [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: [[Y:%.*]] = add nuw i8 [[YY:%.*]], 1
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; CHECK-NEXT: [[SEL:%.*]] = select i1 [[C0]], i8 [[Y]], i8 0
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; CHECK-NEXT: [[SEL_OTHER:%.*]] = select i1 [[C0]], i8 [[Y]], i8 [[B]]
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; CHECK-NEXT: [[SELX:%.*]] = or i8 [[SEL]], [[X:%.*]]
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; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[SELX]], 0
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; CHECK-NEXT: call void @use.i8(i8 [[SEL_OTHER]])
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; CHECK-NEXT: call void @use.i8(i8 [[SEL]])
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; CHECK-NEXT: ret i1 [[R]]
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;
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%c0 = icmp ugt i8 %a, %b
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%y = add nuw i8 %yy, 1
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%sel = select i1 %c0, i8 %y, i8 0
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%sel_other = select i1 %c0, i8 %y, i8 %b
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%selx = or i8 %sel, %x
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%r = icmp eq i8 %selx, 0
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call void @use.i8(i8 %sel_other)
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call void @use.i8(i8 %sel)
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ret i1 %r
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}
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define i1 @src_tv_ne_invert(i1 %c1, i8 %a, i8 %b, i8 %x, i8 %yy) {
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; CHECK-LABEL: @src_tv_ne_invert(
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; CHECK-NEXT: [[NOT_C0:%.*]] = icmp ugt i8 [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: call void @use.i1(i1 [[NOT_C0]])
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; CHECK-NEXT: [[C0:%.*]] = xor i1 [[NOT_C0]], true
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; CHECK-NEXT: [[Y:%.*]] = add nuw i8 [[YY:%.*]], 1
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; CHECK-NEXT: [[SEL:%.*]] = select i1 [[NOT_C0]], i8 [[Y]], i8 0
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; CHECK-NEXT: [[CC:%.*]] = or i1 [[C1:%.*]], [[C0]]
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; CHECK-NEXT: [[SEL_OTHER:%.*]] = select i1 [[CC]], i8 [[Y]], i8 [[B]]
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; CHECK-NEXT: [[TMP1:%.*]] = icmp ne i8 [[X:%.*]], 0
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; CHECK-NEXT: [[R:%.*]] = or i1 [[TMP1]], [[NOT_C0]]
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; CHECK-NEXT: call void @use.i8(i8 [[SEL]])
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; CHECK-NEXT: call void @use.i8(i8 [[SEL_OTHER]])
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; CHECK-NEXT: ret i1 [[R]]
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;
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%not_c0 = icmp ugt i8 %a, %b
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call void @use.i1(i1 %not_c0)
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%c0 = xor i1 %not_c0, true
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%y = add nuw i8 %yy, 1
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%sel = select i1 %c0, i8 0, i8 %y
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%cc = or i1 %c0, %c1
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%sel_other = select i1 %cc, i8 %y, i8 %b
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%selx = or i8 %sel, %x
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%r = icmp ne i8 %selx, 0
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call void @use.i8(i8 %sel)
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call void @use.i8(i8 %sel_other)
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ret i1 %r
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}
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; Make sure we don't crash on this case.
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define <4 x i1> @pr119063(<4 x i32> %x, i1 %cond) {
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; CHECK-LABEL: @pr119063(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[SEL:%.*]] = select i1 [[COND:%.*]], <4 x i32> splat (i32 1), <4 x i32> zeroinitializer
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; CHECK-NEXT: [[OR:%.*]] = or <4 x i32> [[SEL]], [[X:%.*]]
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; CHECK-NEXT: [[CMP:%.*]] = icmp ne <4 x i32> [[OR]], zeroinitializer
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; CHECK-NEXT: ret <4 x i1> [[CMP]]
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;
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entry:
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%sel = select i1 %cond, <4 x i32> splat (i32 1), <4 x i32> zeroinitializer
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%or = or <4 x i32> %sel, %x
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%cmp = icmp ne <4 x i32> %or, zeroinitializer
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ret <4 x i1> %cmp
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}
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